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Jay
@craftco_io
We build mobile apps web apps and AI tools
United States
English, Spanish, Portuguese, French
About me
I build mobile apps, web applications, and AI-powered tools for businesses of all sizes. I specialize in taking projects from concept to launch, whether that's a React Native mobile app, a full-stack web platform, or integrating AI capabilities into existing systems. I work with JavaScript, React, Node.js, Flutter, and modern cloud infrastructure. If you need something built right the first time and want clear communication throughout the process, let's talk.
Skills
Jay
Offline •
Average response time: 1 hour
See my services
Custom Websites
I will build a custom full stack web application for you
AI Chatbot Development
I will build a customized chatbot trained on your business
Portfolio
Work experience
Machine Learning Engineer
Yahoo! • Full-time
Aug 2022 - Present • 3 yrs 11 mos
Machine learning engineer
Associate
J.P. Morgan • Full-time
Aug 2022 - May 2025 • 2 yrs 9 mos
- Built and managed data-driven investment portfolios overseeing $5.7B in AUM, using Python and Excel modeling to drive allocation and risk decisions. - Helped launch J.P. Morgan’s Innovation Economy practice ($12B in PE/VC funds), developing analytical frameworks and tooling for a new client base in under two weeks following the March 2023 SVB collapse. - Performed rigorous due diligence and financial analysis on technology and emerging-instrument investments, sourcing and consolidating over $400M in assets.
